Question

When copper metal is treated with aqueous solution of nitric acid, a neutral gaseous oxideis produced at STP. What number of molecules of nitric acid is required to produce 12 molecules of neutral gaseous oxide?

Answer 1

Answer:

Copper metal "dissolves" in nitric acid (HNO3). The physical change you should observe is the copper-colored metal vanishing as the solution turns blue (from [Cu(H2O)6]2+, the hexaaquacopper ion) and a brown gas (NO2) is evolved. ...